JOSEPH L. MCCARTHY 201 



1 



1 MR. POSTON: That answers my question. 



2 CHAlRmN STEIN: As I understand your 



3 statement, Professor McCarthy, the vanillin method that 



4 you have developed to measure sulfite waste liquor is 



5 available for fresh waters, but it is not perfected yet 



6 for salt waters. In other words, your method is not 



7 available for the waters that were tested here in the 

 g survey? 



9 PROFESSOR MCCARTHY: Not In really satis- 



jQ factory manner. The preliminary paper we published in 

 1963 does give some results, I believe, on salt water 

 samples, but we have had trouble with salt crystalizing 

 out . 



11 

 12 

 13 



14 CH^MRHAN STEIN: Right 



15 

 16 



19 



22 



PROFESSOR MCCARTHY: And we can't quite do 

 it yet, but I think we are quite close to the solution of 



27 that problem. 



18 CHAIRMAN STEIN: But the point is, you say, 



"we ate hopeful that a somewhat modified procodufe can 



20 soon be specif iod which will give satisfactory results in 



21 salt waters." ^ a other words, your method is not avail-3ble, 

 couldn't have been avnllable for these people to use with 



23 reliability in sjlt watrrrs now? 



24 PROFESSOR MCCARTHY: That Is correct. 



25 CHAIuiv^^N STEIN: You alio raised the ooint 



